Lenglet handled the ball before Barcelona's disallowed goal, VAR did not check the French defender's move.

No, the situation that occurred before that is also contentious. Gavi received the ball on his chest and shot, and Clement Lenglet jumped to block it. On that occasion, the ball hit his hand, and in the continuation of the play, Torres hit the net of goalkeeper Mussa, as you can see in the video clip included in the text. The goal was disallowed after a VAR review, but interestingly, the apparent handball by the French defender was not penalized. Incidentally, Atletico advanced to the Champions League semifinals with an aggregate score of 3:2 against Barcelona, who won 2:1 last night.